Ann Arbor
United States · 76K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Ann Arbor
United States
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 0% viability
0Mar: 9% viability
9Apr: 28% viability
28May: 67% viability
67Jun: 85% viability
85Jul: 81% viability
81Aug: 87% viability
87Sep: 82% viability
82Oct: 32% viability
32Nov: 2% viability
2Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Jun–SepChallenging: Jan–Apr, Oct–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Ann Arbor
United States
Annual Average
GoodWHO annual classification
7.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
9.29.2 µg/m³ — Good
8.48.4 µg/m³ — Good
8.08.0 µg/m³ — Good
6.26.2 µg/m³ — Good
7.17.1 µg/m³ — Good
7.47.4 µg/m³ — Good
9.19.1 µg/m³ — Good
7.47.4 µg/m³ — Good
5.95.9 µg/m³ — Good
6.36.3 µg/m³ — Good
8.28.2 µg/m³ — Good
8.88.8 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
9.29.2 µg/m³ — Good
8.48.4 µg/m³ — Good
8.08.0 µg/m³ — Good
6.26.2 µg/m³ — Good
7.17.1 µg/m³ — Good
7.47.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
9.19.1 µg/m³ — Good
7.47.4 µg/m³ — Good
5.95.9 µg/m³ — Good
6.36.3 µg/m³ — Good
8.28.2 µg/m³ — Good
8.88.8 µg/m³ — Good
Best months: Apr, Sep–OctWorst months: Jan, Jul, Dec
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Ann Arbor
United States
Annual Summary
Sunshine
2,078hrs/yr
Clear sky
41%
Worst month
1.0hrs/day
Vit D months
6.2months
UV 8+ days
12days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
3.03.0 hrs — Low
7.77.7 hrs — Good
8.08.0 hrs — Good
9.79.7 hrs — Sunny
1010 hrs — Very Sunny
1212 hrs — Very Sunny
1111 hrs — Very Sunny
1111 hrs — Very Sunny
9.39.3 hrs — Sunny
6.66.6 hrs — Good
6.96.9 hrs — Good
3.73.7 hrs — Low
Jan
Feb
Mar
Apr
May
Jun
3.03.0 hrs — Low
7.77.7 hrs — Good
8.08.0 hrs — Good
9.79.7 hrs — Sunny
1010 hrs — Very Sunny
1212 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1111 hrs — Very Sunny
1111 hrs — Very Sunny
9.39.3 hrs — Sunny
6.66.6 hrs — Good
6.96.9 hrs — Good
3.73.7 hrs — Low
Best months: Jun–AugWorst months: Jan, Oct, Dec
LowGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●